Harold: While the script I sent contained -nolisten tcp, I had deleted it before and it did not make any difference: X still crashed. However, I have to say that I have had my DISPLAY variable set to :0.0 in place of 127.0.0.1:0.0 for quite some time. If that can cause a problem, I can test without -nolisten tcp and DISPLAY=127.0.0.1:0.0. I'll send you the log file. To be consistent, I'll have to test on the office machine, which is the one I have used earlier.
Raymond
